Amends the Global Change Research Act of 1990 to prescribe climate change research initiatives.

Ending Subsidies for Big Oil Act of 2007 - Amends the Internal Revenue Code to: (1) deny a deduction for income attributable to domestic production of oil, natural gas, and appurtenant primary products; and (2) augment from five years to seven years the amortization schedule for geological and geophysical expenditures of major integrated oil companies.

Sets prerequisites for new leases for oil or natural gas production in the Gulf of Mexico. Amends the Energy Policy Act of 2005 to repeal certain federal subsidies for royalty relief for oil and gas, including ones related to Planning Areas Offshore Alaska.